Coixxr-pbinting mechanism



C. ALVORD.

COLOR PRlNTlNG MECHANSM.

C. ALVORD.

COLOR PRINTING MECHANISM.

APPLICATION FILED AUS-20,1919.

Patented J une 28, 1921.

H) SHEEISMSHEE! @MNTON H LJORD C. ALVORD..

COLOR PRINTING MECHANISM.

APPLxc'ATloN FILED AuG.2o. 1919.

193835253. Patente June 28, 1921.

I0 SHEETS-SHEET 3.

Il Il cLVxNToN n Lvcmo )NVENTOR C, LVH.

COLOR PRINTING MECHANISM.

APPLICATION FILED Aucmo, 1919.

Patenterum 28, 1921.,

y? y' @lumumml u H /o i5:

CLINTON HLNOH mmf% itowml C. ALVORD.

COLOR PRINTING MECHANISM.

APPLICATION FILED AuG.2o, I9I9.

Io snefrsis Patented J une 28, 1921.

CLINTON nl vono INVENTOR 3,7 mluma IFJ Patented June 28, 1921.

n( AFPLAICATION FILED AUG. 20, 19H). 1,083,253.

l0 SHEETS-SHEET 6.

CLINTON HLJKD C. ALVORD.

COLOR PRINTING MECHANISM.

.APPLICATIYON FILED AUG.20.1919.

l ,$83,258. Patented June 28, 1921.

C [ANTON HLVORD C. ALVORD.

COLOR PRlNTlNG MECHANISM.

APPLICATION FILED AUG.20, 191g.

Patented June 28, R921.

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l0 SHEETS--SHEE 8.

Fig), 3i.

CLNTON MLA/0R@ C, ALVORD.

COLOR PRINTING MECHANISM.

APPLICATION FILEDA AuG.2o. 919.

Patented June 28, 1921.

l0 SHEETS-SHEET 9- llllllllll L-` C LNToN HLVORD @y um 6,50% /ylw a? C. ALVORD.

COLORYPRINTING MECHANISM.

APPLICATION FILED AUG.20, 1919.

Patented June 28, 1921.

l() SHEETS-SHEET l0.

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CLINTON HLvoRD.

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UNITED STATES CLINTON ALVORD, 0F WORCESTER, MASSACHUSETTS.

COLOR-PRINTING MEGHAN'AISM.

Specification of Letters Patent.-

Patented June 28,1921.

Application led August 20, 1919. Serial' No. 318,716.

To all lwhom it may concern v Be it known that I, CLINTON A Lvono, a citizen of the United States, residing at Worcester, in the county of `Worcester 'and States of Massachusetts, have invented va new and useful Color-Printing Mechanism,- oi` which the following is a specification.

My invention relates to improvements in color-printing mechanism and more particularly to means for printing stripes of color'upon 'warp yarns prior to the operation of weaving carpet or tapestry with manifold color designs. The main and broad object 0I" my invention is to provide an automatic color printing machine for a plying color upon yarn used in the manu acture of carpets, plush, or pile goodsifor upholstery.

Another object of my invention is to stretch a number of threads side by side preferably -upon a drum upon which they are wound so that they may each extend circumferentially around and together cover4 them transversely over the lperiphery of the drum and may thus be striped by colors throughout their length, each color being applied separately and automatically, the

positions upon the yarn where these stripes pattern controlled instrumentalities yin accordance with a predetermined pattern. de-

slon. v

5A good way of putting my newdevice' into practice and a still further object ot `my 1nvention is to provide selectively controlled mechanisms for moving a color car'carrying a submerged revolving coloring pulley in such a manner that the car wil side to side of the yarn carrying drum and allow theA pulley to print the yarn as the @olor car moves under the drum cross-wise,

pass trom ing pulley by means of an index wheel responding to the requirements of a definite pattern through a jacquard or other pattern mechanism. This index wheel is adapted to effect, through certain instrumentalin ties expressly devised therefor, the movement or" the movable yarn carrier, which may be a drum, or other suitable yarn support or holder etc. over varying distances and during variable intervals, sometimes consecutive, and sometimes non-consecutive intervals. In eiectingeach move of the drum over a given distance to position it for engagement by the coloring pulley use is made of anactuator for said index wheel adapted to operate in such a manner that, in enabling the drum to cover its greatest distance betweentwo consecutive stripes of color this actuator may have to make plural strokes. This condition developing, it has been found necessary to devise special mechanism for automatically stoppingthe color-car and coloring pulley atan interval enduring as long as the drum is being turned intermittently before reaching its color receiving position. Owing to the peculiar operation of this actuator it has also been found necessary to devise instrumentalities for preventing the premature automatic operation of the scraper mechanism explained above .whereby the scraper will obey the movements of the' color-car and -not those of the drum which, as already explained, may move 'independently of the color-car.

`illith ,the above and other objects in view my invention consists in the combination,

arrangement and details of construction dis.`

closed in the drawings and specification and then more particularly pointed out in the appended claims. lt is not to be construed that since ll have shown my invention applied to a printing drum in this application, that I am limited tothis style of yarn printing mechanism.

In the drawings wherein similar reference y characters designate similar parts throughout the respective views, y

Figure 1 is a front elevation of the yarn carrying cylinder showing my, attachment applied thereto.

Fig. 2 is a side elevation of scraper actuating mechanism.

Fig. 43 is a fragmental side elevation of said drum, showing also the color-car and mechanism, in diagram, for operating same.

Fig. 4 is a side elevation of mechanism controlling the action of the color car and scraper mechanism.

Fig. 5 is a view of the actuating means for the drum being part of Fig. 1.

Fig. 6 is a detail View of the index-wheel, actuator therefor and actuators for stopping the color car and starting the scraper mechanism taken transversely of Figs. 1 and 5.

Fig. 7 is a plan view of Fig. 6.

Fig. 8 is an exaggerated detail view of the color-car cut-out mechanism.

Fig. 9 is a side elevation of Fig. 8.

Fig. 10 is a fragmental View of the index wheel shown in Figs. 32to 34.

Fig. 11 is a side elevation of Fig. 10.

Fig. 12 is a partial view of Fig.,8j showing a qualified position ofthe parts thereof.

i Fig. 13 is a detail view of the pusher appearing in Fig. 5.

Fig. 14. is a detail view of a cam appearing in Figs. 5 and 32.

Figs. 15, 16, 17', 18, 19, 20, 21, 22, 23, 24, 25, 26, 27 and 28 show diagrammatic views of timing mechanism under varying conditions.

Fig. 29 is a side elevation of the jacquard index wheel,

Fig. 33 is a side elevation of Fi 32,

Fig. 34 is wan end elevation of `ig. 33,

l Fig.-35 is a perspective view of the automatic scraper control.

Fig. 36 is a side elevation of the color car control mechanism,

Fig.- 37 is a plan view of Fig. 36.

In drawings which are merely illustrative of my invention 1 is the cylinder upon which the yarn is wound transversely of the periphery thereof in the usual way, and 2 is the track carrying and guiding the color-car 3 moving thereover lwith its V-grooved Wheels 4. The color-wheel 6 is rotated in i v.pulley or wheel 6 picking up the color necesmesh with the rack 22.

sary to lay a color stripe against the yarn wound on the drum. The top part ofthe color car 7 is hinged to the color car 3 at 8 Fig. 3 and is pushed upward by the spring 9 in the usual manner. The normal position of the color pulley 6 is such that the top thereof is slightly above the lowest part of the cylinder or drum l, the colorwheel being adapted to be crowded down against the yielding resistance'of spring 9.

The yarn which is to be laid on the cylinder preparatory to being colored is wound von the spools 16 held on spindle 17 and frictioned by pad 18 which is pressed up against the lower side of the yarn on the spool by the weight 19. The yarn 20then passes upward through the yarn guide 21 which is attached to the guide rack 22'.and thence to the cylinder 1. The cylinder or drum may be revolved by the usual system of pulley a and gearing 160, 161, 162 and 163 which also causes the yarn guide rack 22 to move slowly across the face of the cylinder to lay the yarn one layer deep thereon, the rack being driven from the worm 1611 in mesh with gear 165 while the motion is transmitted through the gears 166 and 1.67 to the shaft 168, the outer end of which carries the pinion in One or more skeins of yarnV are wound off from the spools 16 and laid beside each other on the cylinder and each'end of each skein is made fast so that each round of yarn is under substantially the same tension and the yarn is laid smoothly and snugly on the cylinder so as to present an even, .surface for the passage of the `color pulrlnley while the surface of the supporting cylinderacts as. a printing surfaceagainst which the pulley presses the yarn to insure a proper penetration and an equal application of color or each thread.

.With the hand operated machines in common use the vcylinder is placed in its various annular positions by means of hand-wheel and gearing so that one operative is constantly engaged in turning the cylinder by the hand-Wheel. In barrying out my invention I get rid ofthis mechanism by employing` ajacqxard and a perforated pattern, thus substituting mechanical expedients for the personal equation, the holes in the pattern being punched according to the .requirements of the design, which design determines corresponding positions for the cylinder, and color-car with its coloring-pulley.

When two stripes of the color are laid beside each other so as to blend, some of the rather thick coloringmatter crowds out from under the coloring pulley and a ridge of thi'sthick dye is left where the two stripes lmeet each other. For years it was common practice to `scrape this surface color into the yarn by a hand scraper and thus even it off and of late years it has been customary t0 y use a mechanical scraper which .s-attached to theY color-car and which scrapes after vthe color-pulley, a common form of which is shown in Fig. 3, there being two Scrapers 23 and 24:. The car is moving in the direction of the arrow a, and therefore the scraperIl 24 is down so as to pass under the yarn without touching it, while the scraper 23 is just rising to an up position beca-use its roller 25 is just climbing up the incline 26 of the scraper controlling bar 27. The scraper 24 is down because the roller 28 has swung backward around the hinge pin 29 which was caused by the forward vmovement of the color-car. The opposite stroke of the colorcar will cause roller 25 to swing upward and let down scraper 23 whereas roller 28 of scraper 24 will be thrown into a straight line and thrust up 24 so as to scrape behind the color-pulley. The scraper-controlling bar 27 in the ordinary hand controlled printing drum is raised upward by the pressure of the operatives foot working on a. foot treadle 128, but in my invention the pressure on the lever for raising the scraper bar 27 is automatic in its action as will be described later on in this specification.

l contemplate applying my invention in the form of an attachment to the conventional type of hand printing machines for coloring yarn, wherein the color-car, colpring-pulley and treadle operated scraper mechanism, as well as yarn cylinder and winding mechanism are already to be found. The jacquard mechanism which l employ is but one form of pattern mechanism which ll contemplatel using. The perforated strip 30 of the jacquard is wide enough so. that there can be enough holes across the strip for each jacquard needle and in practice l preer to use fifty. The action of the jacquard is simple and practically like similar devices and a hole in the strip means that the griffe 31 will push the corresponding hook Y32 backwardor toward the left.

I will first describe .my automatic attachment for selectively positioning the yarn cylinder 1. The cylinder 1 is formed with an internal circumferential rack 59, (see Figs. 1 ari-d'6) with which meshes the pinion 58 fast upon the shaft 57 upon which is also fixed the spiral 56 which meshes with the spiral gear -55 fast upon the long extended hub formed on the index-wheel 33, which index-wheel is mounted so 'as to turn freely on the stationary guide plate M. The index-wheell is formed with a circumferentially-extending series of pin receivingopenings 3a in which slide thejacquard pushed pins 34. The index-Wheel 33 is formed.

with a ratchet 1l.a upon its outer circumference, there being one ratchet tooth for each pin receiving hole, said holes 34 being respectively arranged about midway two adjacent operative faces of the ratchet teeth (see Figs, 10 and 32). Adapted to engage the ratchet teeth 11a is the pawl 38 carried loosely by the pawl lever or arm 37 which 4is free to oscillatel back and forth about the Iaxis l()a of the ratchet for slightly more than half a circle being mounted freely upon the long extended hub of the index-wheel 33 and being limited in its motion forwardly directly by the dead stop 39, and in its back or return stroke indirectly by the dead stop 40. One tooth of the ratchet 11a corresponds to one tooth on the regular index 60 of the yarn cylinder.

The jacquard hooks 32 are slidably mounted at one end in the stationary gui/de plate M concentric with the openings 34 and at their other ends pass so as to slide through the vertical needles 36, in the conventional manner. These jacquard hooks 32 are arranged in a concentric series within the guide M and provide a concentric seri-es of pushers adapted to register with the pins 34 sliding in the holes 34 of the index wheel 33. lt will be 4noticed that all of the pins 34 which it is proposed to push out and project through the holes 34 oi the index wheel are pushed out by their corresponding jacquard hooks 32 at the same time. The hooks 32 push the pins 34 until the shoulders 3a@ of the latter (see Fig. 11) contact one side of the index wheel 33, whereupon the pins will remain in iXed position and it willthen be necessary to return the hooks to normal position. ln order to do this l provide a bar 3l attached to griii`e'31 and moving with it. This bar 31 in its rearward motion contacts with the upt'urned ends 32 of those hooks 32 which have already been moved and thus retracts thein.

The jacquard works .whenever the index wheel 33 has made one complete revolution and at each action ofthe jacquard the fortyeight pins carried by the index wheel arev reset in accordance with the desired pattern.

llt is to be noticed that one of the pins slidable in one of the holes 34 of the concentric series of preferably forty-eight holes is a spring projectable pin 35, which pin is normally held projected in its hole by the spring 35. When the spring pin 35 occupies the annular position shown in Fig. 32 the cen-v ter line 'ofthe lever 37 will coincide with an imaginary line indicated XX on the drawings, known as the zero line. Each slidable projected pin 34 moves with its index wheel 33 in a clockwise direction accompanying the ratchet teeth 11a which are acted upon by the pawl and moved thereby. f Whenever a pin 34 approaches the XX line or zeropoint it is retracted by the stationary retracting cam 54 placed conveniently near the rlght hand side of the pin wheel 33 (see Figs. 10' and 1l). Therefore while the index-wheel 33 makes one complete lrevolution all the pins which had been' moved outward by the action of the jacquard are retracted to this normal position by ythe cam 54, and atthe zero point, when index-Wheel 33 has been moved its full distance the spring pin 35 will also be retracted and held back by the same cam. l

The wires 32 of the jacquard act on the pins34, proj ectable through the index-wheel 33, whenever index-wheel 33 is moved so the spring pin 35 in the index-wheel isat.. the point XX shown in Fig. 10, called the Zero point. The actuating arm or pawllever 37, shown in Fig. 6 moves up to this zeropoint at the completion of its forward working stroke. At each complete turn of the index-wheel the spring pin 35 brings the wheel to a stop' opposite zero position. The various pins are pushed outward toward the left in all cases where the corresponding needles 36 enter holes in the pattern strip.

In order to prevent any retrograde movement on the part of the index-wheel I provide the brake drum 61 which is fast on the gear 55 fixed on the axis' 10a of the index-' wheel and the brake band 62 passing around it causes sufficient frictional resistance so that the ratchet tooth does not run away from the point of the pawl 38 and conse-,

quently the yarn cylinder 1 is always brought to rest at the correct annular spacing.

There is a pusher 41 freely mounted upon the long extended hub of the index-wheel 33 and arranged to move into contact with the pawl lever 37 to urge it forwardly to the end of its stroke'so as to rest on dead stop 39. The usher 41 is formed with an offset 41h (see ig. 34) which immediately impactsl with projection 41a on the pawl lever37 to drive the latter always in a clockwise direction, while the return.' of the pawl-lever 37 is accomplished by means of the weight 42 (Fig. 6) suspended on the strap 43, the opposite end of which is attached to the drum 44 which is fast to the pawl-lever 37. The i pusher 41 receives its oscillating motion from the gear 45 fast on the pusher 41 which meshes with and is moved by the toothed rack 46 which is pivoted on the' crank stud 47- in crank-arm 48 fast on shaft 49.

The shaft 49 is rotated by an intermittent fast and slow movement through the sector gears 50 fast on the shaft 49 and sector gears 51 fast on the colorear motion crank shaft 52. The sector gears are placedy so as to cause the 'pusher 41 and therefore the pawl -lever 37 to move backward about twice as fast as they move forward and thus the pawl 38 drives the ratchet v33 forward with a relatively slow motion while the pusher 41 is retracted to the limit of its throw in about one-half the time in which the forward stroke is made. The shaft 49 rotates two toone with the shaft 52.

The pawl lever 37 has a prescribed movement in an arc of a circle and. in making its .such a pin 34 be in projected position and in the path of rearward movement of the lever 37. The pawl38 will then be in a position to drop freely into the corresponding ratchet tooth and upon its forward movement` the pawl 38 will rotate the ratchet, It

lwill be noticed that the lever 37 carries a lug 53 (see Fig. 6) which is the part that contacts any projected pin 34 vduring the rearward movement of this lever 37. Al tooth on the'rat'chet 11a corresponds to one tooth on the regular index 60 of the cylinder. the ratchet-wheel and the drum consists of the meshed spiral ears 55 and 56, the latter being on shaft 5 shown in Figs. 1, 5 and 32. The pinion 58 is also mounted on the shaft 57 and meshes with the rack 59 on the usual index 60 of the cylinder or drum 1.

In the hand operated machines the yarn cylinder index contains a large number of teeth for the yarn cylinder, whereas l have provided only forty eight ratchet teeth and projectable pins 34, in my auxiliary index 33, for the same purpose, which enables me.

toemploy a small number of jacquard hooks. Bysetting and resetting these projectable piris'34 of the index wheel after each successive revolution thereof I am able to position the yarn cylinder selectively in any one ,of its annular spacings.

lt will be understood that the forward stroke of theindex pawl 37 which moves the ratchet 11n and index wheel 33 clockwise also moves, throughthe above described cylinder-operating mechanism the yarn cylinder 1,- which action'f'ktakes place while the j color roller 6 of the color car 3 is out of contact therewith, and therefore it is necessary to synchronize and time the action of the colorear with respect to the yarn printing drum. i

A continuously rotating shaft 52 is provided and is adapted to control the movements of thejcolor-car and the scraper mechanism. if will first describe the means, controlled by shaft 52, for operating the color-car, Vand will describe the use of the cut-out for said color-car operatin means. As shown in Fig. 8 a hub 81 is splined fast on shaft 52 so as to rotate therewith. Adapted to turn about and 4upon hub 81 is the hub 7 5 carrying the crank arm4 75. The shaft -52 receives its motion from pulley a shown in Fig. 1 through the pinion gear 78 mashed.A with gear 79 which is fast on shaft The transmission mechanism between j 52. The hub 81 is formed at diametrically opposite points rwith the recesses 81 Fig. 8 which are dish-shaped in configuration. A locking bolt 80 is trunnioned partially in the hub 81 and partially in the hub 75" as shown in Fig. 8 and it operates in a manner similar to the well known power punch press cont-rol. The bolt 8O is cut away as at 80 where `it extends into the vh'ub 81 that is fast on shaft 52. The locking bolt 8() is adapted to be rotated in its seat in the hub 75 and into the recess bored in the hub 81 as shown in F ig. 8. The gear 83 is fast on the locking bolt 8O and serves to oscillate the locking bolt, this gear meshing with the gear 84 which is pivoted on thestud 85, mounted in one of two diametrically opposed lugs formed upon lthe crank hub An abutting arm 86 terminating in a pawl 86 is pivoted on stud 85, and another similar abutting arm is pivoted on the stud 85 diametrically opposite the one on stud 85. The gear 84 has a crank arm 84 which is pivotally connected by a connecting rod 90 to the abutting arm mounted on the stud 85. The spring 87 is secured at one point to the crank hub 7 5 and also to the connecting rod 90 as shown in Fig. 8. The spring normally holds the two abutting arms in the positions indicated in the form of the broken line pawls 86 in Fig. v8, this position of one of the abutting arms being shown in Fig. 12, whereupon it will be noticed that the locking bolt has been rotated in its seat and into the recess bored in the hub 81 as shown in Fig. 12, and in that position it causes crank arm 75 to rotate in unison with the shaft 52. A revolving crank stud 1() Fig. 9 connects this crank arm 75 with a stroking arm 9 carrying a rack 11 at its lower end, this rack meshing with a sector gear 12 Fig. 3 which in turn meshes with the pinion 13 secured to a cord pulley 14 which moves the cord 15 back and forth so that the ends of the cords, being attached to the color-car in the usual manner will impart motion to the color-car whereby it will be. stroked back and forth. It will be noticed that the rocking arm 8 fulcrums on the axis 7 of the sector gear 12 so as to carry the rack into engagement with the sector gear.

The jacquard sets up or registers t-he pins in the index wheel according to Vthe design and the pawl moves the index wheel accordingly as its' lever impacts in its rearward motion against the various protruding pins, the particular pin projected at any particular time determining the distance over which the yarn carrying cylinder moves at any period of rotation. The particular design may not call for making consecutive color stripes upon the yarn and it `*may be necessary to apply color stripes at various spaced apart intervals upon the yarn, hence the drum will sometimes move over greater distances than at other times. The index wheel provided has fewer pins than there are teeth around the circumference of the cylinder, so it may be necessary to turn the index wheel one or more times to register the intervals apart between which color stripes are to be applied to the yarn on the drum. In other words the cylinder may have to make several moves before it comes to rest to receive a color stripe. ln this event it will be necessary to prevent the premature operation of the color applying mechanism furnished by the color car. Reference to Figs. 16 and 17 will show diagrammatically that the cylinder 1 turns while the pawl-lever 37 is moving clockwise as indicated by the arrow and stops while this lever is moving counter-clockwise or making its return movement; it will also be seen that while the cylinder is moved, and the sector gears 50 and 51 are causing the pawl 38V to move forward, the color-car has moved out from under the cylinder and is not in contact therewith. The range of movement of the pawl 38 covers twenty-four ratchet teeth or practically one-half of the total number of teeth on the index wheel; therefore any pin 34 projected opposite any of these 24 teeth assures that pawl 38 will turn the ratchet wheel and consequently the drum asimilar number of teeth. As this takes place the color car is runningback and yforth on its track applying a color stroke to the yarn whenever the drum has ceased to rotate. The color car will apply a color stripe during each of its forward and backward strokes as illustrated in Figs. 17 and 20. So far the mechanism `described is adapted to enable the cylinder to move over distances representing intervals up to 24 teeth or one-half of the index wheel. It may, however, be necessary to movethe drum or cylinder over a greater distance. Thisbeing beyondthe power of the 'awl lever 37 to accomplish by a single stroke it will be necessary forit to make al double or duplicate stroke, the drum during this event, making two corresponding moves and therefore stop ing twice, as it stops during each back stro e of the pawl lever 37. However, as the color-car strokes the yarn on the drum every time the drum stops it will be necessary to cut out .its operation during the irst stop of the drum and immediately reactuate it when the drum makes its second stop after having moved over the requireddistance, because the requirements of the carpet design has called for this larger skip of the index wheel.

The mechanism required to stop the move- 'ment ofthe color car must operate in such a manner that the color-car will be stopped lin a position representing either extreme of itsmovement where it will be out of Contact with the drum. It is necessary tov cause v is connected Ato the lever 67 fulcrumed at 68 and provided with a cam end or portion 69 shown in Fig. 14, this cam end adapted to bear against a cam 69 on the arm 70 of the lever 71 fulcrumed intermediate its ends upon the pin 110, the lever 71 carrying a segmental member-109 adapted tovbe contacted by the curved end 108 of a'lever 1105 pivoted on the pawl lever 37 at 106. The lever 105 is a bell-crank lever and the arm 104thereof carries the roller 103 adapted to project into a notch 102 on the index wheel in line with the spring pin 35, this notchv being cut directly into the circular rim orA ring 101 fast on the ratchet pin `wheel 33,l the spring 107y being adapted to retract the roller 103 into the notch 102 when the pawl lever 37 is arrested during its rearward stroke by the spring pin 35. I have provided a 48th jacquard impelled pin, isolated from the pin 34 and have placed it directly in the center of recess 102 so when thek pin 111 is `in its projected position, it will block up the recess 102 and prevent the entrance of the spring impelled` roller 103 thereinto. The lever arm 70 carries at its end a connector 72 which is shown in Figs. 2 and 7, and this connector 72 is attached loosel tothe tail 73 of the hook member 74 fu crumed upon the pin 74 carried by the arm 93 of a bell-crank lever 91 fulcrumed upon the stud 92. The bell-crank lever 91 carries the roller 90 at its upper end, the 'roller being acted upon by either lobe or nose of l cam 90 fastv upon the continuously rotating shaft 52, as shown in Fig. 4, a spring 100 acting to normally position the lever 91 vertically when not acted upon by the cam 90. The hook member 74 carries the oppositely extending hooks 90,a and 90b at its upper end adapted to engage either with the dead stop lever 88 -or with the lever 98. The lever 88 has a slot 89 the purpose of which is to hold a soft backin for the pin 89 serving as a fulcrum Jfor ever 88.

The end c of lever 88 is wedge-shaped and is adapted to bel engaged by the stop 94 Figs. 4 and 36 formed upon the trigger 94, the stop 94 being normally held in engagement with the cam edge c of lever 88 so as -to prevent this end of lever 88 rising higher, the stop 94 being urged against cam c `by the spring 96 secured fixedly at D. The trigger 94 is suitably fulcrumed at stud 95. The lever 98 is'fulcrumed at E to lever 88 and has a cam head 98 inclined similarly to the inclined edge F of stop 94. lever 98 is normally held byspring 99 in the position clearly shown in Fig. 4 where the cam edge of the lever 98 is held out of 4engagement with the trigger 94.

' It will be seen that a friction clamp 100L Fig. 8 is provided for the purpose of applying frictional resistance to the movementof the crank arm 75, this clamp being provided with opposing arms 82 and 82 bearing against the hub of crank arm 75, in the well known manner of ordinary punchpresses.

'I will now describe the scraper operating mechanism. The foot treadle 128 Figs. 1, 2 and 35 is of the conventional type used in yarn printing `machines and is fulcrumed at 134 being held in the position shown in Fig. 2 by the spring 130. The treadle, as shown in Fig. 1 has connected to its arm 135 a link 136 which is connected to thescraper controlling bar 27. As the foot actuated scraper is a well known device, the drawings are therefore quite conventional in showing this portion of the scraper mechanism, the purpose of the drawings being rather to show the new selective actuation of the already well known foot treadlev type in which the motion from a depression of the treadle is transmitted from the treadle arm 135a through the vertical link which is pivotally attached at itslower end to the arm and at its upper end to the scraper bar 27. The high position of bar 27 will cause the Scrapers 23 and 24,Fig. 3, to scrape in turn be- -hind the color roll 6 while the low position of the bar 27 will cause these Scrapers to drop so low as to miss entirely the yarn on the cylinder. It is designed `that the position of the pawl lever 37 controlsthe position of the `scraper bar 27 and consequently the operation of the scraperswhich are to function only when two stripes of the same color come together. For this purpose a Abellcrank lever 115-Figs. 6 and 32 1s fulcrumed at 116 and has a curved upper end 114 adapted to be engaged by the cam end 113 of the stroking pawl lever 37. 132 normally positions the level 115 in such a manner that arm1l5 thereof will be arranged vertically. The flexible connector 117 has one end attached to the lever 115 and has its other end attached to the weighted end 119 of a pawl 120 which is pivoted on stud 121 as shown in Fi 35; the stud 121 bein secured to a part fixed on the connecting rod 127 which is connected to the foot treadle by meansof the pin 129. The iexibleconnector 117 at points between its ends is trained over the sheaves 117a and 117", also shown in Fig. 35. The pawl 120, it'will'be seen, is disposed at an anale relau tively to the weighted arm 119. lidably7 mounted on connecting rod 127 as 'by means The spring l The inv sciapers will not be thrown into action un` less weighted pawl 120 is allowed to swing of the lugs G is a slide 123 carrying a roller 125 being acted on by the camv122 also fast on the continuously rotating shaft 52. The slide is held in the position shown in Fig. 2 by means of the spring 124.

I provide mechanism y,serving as an auxiliary control for the scraper mechanism as followsr I have elongated the rearward part of the dead stop 88 Figs. 4 and 35 and pivoted a pawl 138 thereon at 139. The upper end of pawl 138 is adapted to engage with one of three teeth 140 spaced circumferentially upon a ratchet 141 which is fast on the shaft 142 which is free to turn in bearings not shown. Also xedupon the shaft 142 is a cam 143 which is formed with depressionsM for the reception of a roller 144 carried bythe arm 146 of lever 147 which is fulcrumed at 148. The free end i 149 of the lever arm 147 yis attached to weighted end 119 of pawl 120 by the flexible connector 150. Another three toothed ratchet 157 is fast on the shaft 142 and the arrangement of this ratchet is such that one tooth of the other ratchet 141 will be disposed'normally,in the position of the parts shown in Fig. 4, between two teeth of the ratchet` 157. Resting between two teeth of ratchet 157 is a pawl 156 Figs. 2, 4 and 35 fulcrumedat 155 and carried by the vertically arranged lever 152 which is fulcrumed upon a pivot 153 and has a roller 151 adapted to be acted upon by either of the two lobes of cam 151 also fast upon the shaft 52. The spring 154 is arranged to normally hold the arm 152 in a vertical position not shown in Fig. 4.

The mode of `operation of my invention will now be explained. It must be remem bered that one'revolution of the constantly revolving shaft 52 will normally cause the color-car to make two passes under the yarn cylinder 1 and also that similarly the cam 122- will` always de ress scraper-slide- 123 twice for each revolution Vof shaft 52 and hold it down while the color-car is thus passunderthe cylinder. However the into operative position where lug G can 'contact with its tlp, or working end, and thus cause the connector 127 and treadle 128 to be depressed by the downward motion of slide 123 and thereby raise the scraper bar` 27, which act will always cause vthe scraper 23 or 24 to scrape inturn behind the color-roll 6. The scraper-bar 27 must be held up lin a stationar position while the color-cards passing un er the yarn cylinder, and at this time the cylinder is at rest, and the indexpawl-leve'r 37 is making its rearward or in` operative stroke.

The yarn cylinder ismoved by the urge of.

pawl 38 on lever 37, and during such rotation of the arn cylinder the color-car is outJ from un er it as shown in Fig. 3, and

4 the friction.

during this period of time, when the colorroll is not in contact with. the surface of the yarn cylinder, the scraper slide 123 is retracted by the spring 124 and then again forced downward by the constant rotation of cam 122, and it arrives at its lowest po sition just as the 'color-car again reaches the edge of the yarn cylinder on its next stroke. The scraper slide 123 always moves downward at each forward stroke of index-pawllever 37 even if the Scrapers 23 and 24 are not to operate, or even if the color-car is cut out of action Abecause of a large skip of the -yarn cylinder 1. A The action of the cylinder, color-car and scraper willv now be clearly explained and the explanation will come Vunder six conditions or heads as follows:-

First when the indeX-pawl 38 is making skips of two teeth or more but Anot over twenty-four teeth; second the stopping of the color-car whenever the spring-pin 35 arrests the index-pawl-lever 37 and the pattern to be printed does not call for a color stroke at the spring pin stop; third the manner of making a color stroke at the springin p0- sition whenever the requirements of t e pattern demand it; fourth the action of the mechanism when large skips of'over twentyfour teeth are made; fifth the action of the scraper which must operate only on the second of two consecutive color stripes of the same color` z'. e. only while blending stripes of the same color are being laid; and, sixth automatic stoppage of the scraper, or the action of the scraper cut-out, whenever the index-pawl after stopping at the springpin is pus ed to lthe zero position, when the pattern does not require a color stroke but when the next rearward pin 34 upon the next 105 set up is 1pushed out4 by the jacquard forv a color stro e.

I will now describe the first condition -The index-pawl lever 37 is movingbackward .revolve in unison with the ratchet and come to rest, being likewise checked and held by The rotation of the shaft 52 will cause the crank-arm 75 to revolve because dead-stop 88 is as shown in Fig. 12 and thus the color car will stroke backward and forward under the cylinder, and the parts are so timed and designed that the color-car will Contact with the cylinder. only while the cylinder is at rest, and the cylinder will turn, under the forward urge of the the cut-out of the color-car action when the pawl lever is stopped by the spring-pin.

As soon as index-pawl-lever 37 checks at the spring-pin 35 on a short Askip the roller 103 Figs. 7 and 33 on lever 105 will drop into the recess 102 of the circular rim 101, being urged there by spring 107 and the end 108 of this lever will contact somewhere on the curvedv end 109 oflever 71 (see Figs. 10 and 33) and move it so that the motion of the roller 103 into the recess 102I will be transmitted through the connector 72 to the hook member 74 and the head 90a will be thrown over against the dead-stop 88, see Fig. 2.-

The rotation of cam 90 on shaft 52 always causes lever 91 to make a working stroke and now forces lever 93 down carrying with it hook 90a of member 74 which, being up against lever 88 will hook onto it and likewise draw down the pawl end 88" of this dead-stop lever 88 far enough to allow latch 94 to move forward under the action of its spring 96 and catch on to and hold lever 88 in a horizontal position as shown in Fig. 4. Thus the end 88 will be raised into the path of movement of one of the abutting arms 86 carried by the crank-arm 75 and upon contact thereof the locking bolt 80 will be revolved and the' crank-arm freed from the hubl 8.1 of the revolving shaft 52 and the crank arm 75 will' come to rest on one of its dead centers, and consequently the color-car which is moved thereby will halt at one of its extremeI positions away from the yarn cylinder.

The jacquard will now again indica-te and re-set the pins 34 in the index wheel 33 for the next revolution of the index wheel and the pawl-lever 37 will again be retracted by the weight 42 until it comes into contact with the next acquard protruded in 34.

This rearward stroke o the pawl-lever away from the zero position, and the spring p in 35 will cause the roller 103 to be cammed by the edge of the recess 102 and the consequent motion of lever 105 will be transmitted through lever 71 and connector 72 to member 74 and hook 90b thereof will be moved away from dead-stop lever 88 by retraction of s ring 74 and against trigger-lever98 (see ig. 37). The hook will have raised under the aetlon of spring 100 which pulls lever n93. upward as the lobe of cam 90 passes .out

from under roller 90'-, and the parts will be positioned as shown in Fig'. 15 with hook' 90b already to catch onto trigger lever 98 and pull it downward when the hook is depressed again under the influence of the down stroke of lever 93 and thus force the retaining catch 94 off cam edge C of dead'sto`p 88 as shown in Fig. 36 and allow it to move upward, under the action of spring 100.

Fig. 36 shows the dead stop 88 as free from its retaining catch 94 and just ready to move under action of the spring 100 out of engagement with abutting arm 86. This action will move the end 88 down away from the abutting arm 86 and allow the locking bolt 80 to re-engage crank-arm 75 with the revolving hub 81 and shaft 52 and thev color-car will begin to stroke again and will continue to do so until the pawl-lever 37 again contacts against spring-pin 35 as it must always do. The above action will then be repeated unless the third condition is fulfilled which is that the pattern calls for a color-stroke when the spring-pin reaches the zero position.

The third condition exists when the isolated index-pin 111 is projected by the jacquard so as to cause the color-car to stroke at the s ring-pin according to the design, and as t is pin 111 is located in the mouth of recess 102 of the circular rim 101 the roller 103 cannot enter the recess and therefore the action of cutting-out the motion of the color car as described under the second condition cannot take place. Consequently the car will continue to stroke until the index-pawl lever is oncemore checked byI the.

vspring-pin, and if the pattern does not call for a color-stroke at that particular member then the color-car will stop as described under the second condition. Thus far al1 the strokes of the index-pawl have been for skips but none of (them have been for more than twenty-four teeth, and I will now describe the manner of making lar er skips which comes under the fourth hea `When the design calls for a skip of more than twenty-four teeth between any two stripes of the same color, it will be necessary to bring the color-car to rest while the drum is turnin the requisite number of teeth.

A speclic example will make the mode of o eration clearer. Let us assume that the slxth index-pin is at the XX position and that the color-car is laying a stripe on the yarn. The next stripe of that color, as shown which is twenty-four back of XX. One arm A 64 of the bell-crank lever 63 when contacted by the pawl-lever will move against dead sto 4- 0 (see Fig. 32) against the tension of spring 40', thus arresting the pawl-levers rearward movement while the other arm 63 of lever 63 will pull connector 6G to which it is pivotally connected (see Fig. 6) thus forcing the cam-end 69 of lever 67 against the cam 69 on arm 70 of lever 71 which lever transmits the motion through connector 72 and throws 90a against dead-stop lever 88 so that its next regular depression caused by cam 90 will draw down end 88 and likewise elevate end 88y which will operate locking bolt 80 asdescribed under condition two above, for the cut-out of the color-car motion, and consequently the color-car will stop.

The pawl-lever will next move forwardl carrying the thirtieth index-pin to the X position but, of course, the yarn will not be striped as the color-gar has been stopped. The pawl-lever 37 will then be retracted again until it contacts spring-pin 35 at which time the roller 103 rwill be forced into the opening 102 and the same condition exists as already described under the second condition for, although the hook 90aa again moves downward nothing is changed. Since the spring pin is only eighteen teeth back of the tooth previously engaged by the pawl the total number of teeth skipped has been twenty-tour plus eighteen or forty-two. The example stated that there is to be a skip of eighty-three teeth which therefore means that the pawl-lever must fall back forty-one `more teeth before it can strike a jacquard projected pin.

As already described under ,condition two the jacquard will reset the index-pins whenever spring pin 35 comes to XX position and it is evident fromlthe example that the fortysecond pin will be the first, numerically, to be projected. The pawl-lever willthen be retracted again and since none of the first twenty-tour pins have beenl projected it will contact again against lever 63 as previously described under this condition, thus keeping the color-car still at rest. The twenty-fourth pin will be carried tothe XX position after which the pawl-lever will be retracted until it contacts the vfirst rojected pin which is the forty-second. he color-car will be started in motion exactly as described under condition two when contacted against a projected index-pin and the forty-second pin will be brought to the position just before `the color-car reaches the cylinder and then the desired color impression will be :made upon the yarn on the cylinder. p

The lifth condition is the scraper motion which is thrown into action immediately after the color-roll begins to make the second of any two consecutive strokes of the same color. The index-pawl being checked rearwardly for a skip of less than twenty-four teeth by a jacquard protruded pin then makes aworking stroke up to the zero point der,

:flexible connector 117 and the workin thus positioning the yarn cylinder and the color-car makes its necessary stroke.

Every time the index-pawl lever 37 moves up to the zero point, as mentioned in any of the above descriptions, it comes in contact with the end 114 of lever 115, see Fig. 6,

and moves the horizontal arm 118 downward against the action of spring 132 and therefore slackens up on flexible connector 117 which allows the weighted arm 119 of scraper pawl 120 to drop and allows the working end of the awl 120 to swing toward the left where it wi l be in working position to be contacted by lug G of slide 123. However it cannot swing in under lug G- on a skip tooth movement of index-pawl because lug G has already been forced down beyond the working oint of the pawl 120, for, as already descri ed the scraper slide 123 must be all the way down as soon as the color-roll in the color-car contacts with thel yarn cylinand this ltakes place as soon as the indexpawl lever reaches XX at which point the cylinder always comes to rest. Hence the scraper bar 27 will not be thrown up on any skip tooth movement of the index awl. lf the next rearward movement of t e indexpawl is for one tooth only, when, in other words, the consecutive rearward in has been projected by the jacquard, then t e extended end 113 of pawl lever 37 will not move back ar enough to become disengaged from end 114 of arm 115 and thus the arm 118 is still kept in its lowered position and the flexible connector 117 is still under slack and the weighted end l119 of scraper-pawl 120 is consequently likewise still down, then during the next downward move of the scraper the slide 123 will cause lug G to contact against the working end of scraper-pawl 120 and the depression ot the connector 127 and therefore of the treadle 28 and the elevation of the scraper bar 27 will take place and one of the Scrapers, either 23 or 24, will be ready to fulfil its function and scrape during the coming stroke of the color-car against the "yarn stretched on the cylinder, because cam 122 will hold slide 123 down until the colorcar finishes the stripe. The device will continue to be thrown inand scrape so long as one protruding index-pin follows its predecessor; and as soon as the index-pawl lever 37 moves backwardv two or more teeth2 or a skip, then the end 114 of lever 115 will no longer contact with extended end 113 or the pawl lever, and consequently spring 132 will raise the arm 118 and therefore the weighted end 119 of scraper pawl 120 through th en of the pawl will be missed by` lug of scraper slide 123 on its next downward stroke, and consequently no action of the scraper will take place.

l will now describe the sixth condition, or the scraper cut-out. As has been previously explained the scraper will be set to scrape, z'. e., the weighted pawl 120 will swing into operative position, whenever the pawl lever falls back one tooth from the XX position, but it is evident that, if one set-up of the pins by the jacquard does not call for a color stripe at the spring-pin 35 then the colorcar mechanism will not operate; and if the next .'acqu'ard set-up does call for a stripe at the rst pin back of spring pin then the scraper would be set to scrape on a stripe which was not immediately adjacent to one of the same color.

As already described under the second condition, when there is to be no color stroke at the spring-,pin the end 88 of lever 88 is raised to stop the color-car, and 'consequently pawl 138 secured to this lever has been' lowered. The pawl 138 ulcrumed at the end of this lever 88 at 139 will be raised again whenever the end 88" of lever 88 is raised, and incidentally the end 88l drops away from the abutting members 86,v thus causing pawl 138 to turn tooth 140 of ratchet 141 and therefore also cam 143. The roll 144 of lever 146 is forced down by the lobe of the cam 143 thus raising the other arm 149 of the lever 146 and hence pulling upA the weighted end 119 of pawl 120 throng flexible connector 150 and preventing al scraper treadle depression when the first pin is at Ythe XX position. This is the scraper cut out, but now it must be rendered inoperative as it is possible that the next pin might call for a stripe and in that case thescraper must operate. Pawl lever 152 is being constantly reciprocated by cam 151 but pawl 156 normallyy cannot turn ratchet 157 as its motion carries it 4back and forth between two teeth. However when the ratchet has been turned one sixth a revolution as just described, the pawl 156- on its next working stroke, actingon ratchet 157 the tooth of which it can nowreach, will turn the Cain 143 again one sixth cfa revolution so that the roller 144 of lever 146 will drop into the recess of the cam and consequently the iiexible connector will be lowered and rendered slack so that the scraper-pawl 120 is again reetov be-.acted u on by its regular flexible connection 11 whlch is attached to arm 118 of lever 115 and 'which works through contact with end 113 of index pawl lever 37 just as described under the fifth condition explained above.

The same condition will exist when making a twenty-four toothl skip when no pin has been projected by the jac uard, the only f difference being that ythe co or-car cutout is operated from the movement of lever 63v out cam. This turning of the scraper cutout cam will cause pawl 120 to assume its inoperative position. The cam willbe turned the second necessary one sixth of a revolution by the action of pawl 156, just as already described above, and the scraper cut-out will be brought back to normal again where it leaves pawl 120 in a position to be controlled by lever `115. This scraper cut-out will always `operate whenever the color-car crank arm 75 is 'started up, because the depression of the end 88 of the dead-'stop lever 88, which allows the locking bolt to turn and drive the crank arm 75., will cause the elevation of the pawl 138 and compel the turning of the scraper cutout cam. In all such, cases the very next stroke of pawl 156 will give the scraper cutout cam the necessary impulse and it will be brought back to normal where it will remain until the color-car motion is once more stopped and then restarted.

The requirements of coloring yarn design will probably call for all six of these above described conditions, ,and of course they can come in any order, and be re cated any number of times.

he mode of operation of my invention will now be graphically described and I will explain the same six conditions of operation of cylinder, color-car and scra er from Fig. 15 to 28 inclusive, which are iagrammatic. The description will however follow a somewhat dii'erent order, for the requirements of the design could call for any order of sequence.

Figs. 15, 16,and 17 show the position of the-members for condition one with the index pawl making skips of less thantwentyfour teeth. Dead-stop 88v is down or 1n inoperative position and therefore crankarm 75 is revolving and consequently the color-car is stroking under the cylinder. ln Fig. 15 the pawl-lever 37 has just reached and been arrested in its rearward stroke by a jacquard protruded .pin 34; lhe pawl 138 is' up and standingtstill, while horizontal pawl 156 has reached .its extreme righthand or working stroke, fwhicl in this case is an idle one, and which wilt/always vbe an 4142 and thus moved a tooth of ratchet 157 forward intoreach of pawl 156. Scraper slide 123 which hasnot this time operated the scraper is^just starting upward and the color-car with both Scrapers in an inoperatlve position is leaving the cylinder 1 and moying in the direction of its arrow. Yarn cylinder, or drum, 1 is nearing the end of for any 

